org.cryptimeleon.math.structures.groups.lazy

Class HashIntoLazyGroup

java.lang.Object

org.cryptimeleon.math.structures.groups.lazy.HashIntoLazyGroup

All Implemented Interfaces:

Representable, StandaloneRepresentable, HashIntoGroup, HashIntoStructure

Direct Known Subclasses:

HashIntoSecp256k1

public class HashIntoLazyGroup
extends java.lang.Object
implements HashIntoGroup

A HashIntoGroupImpl wrapper implementing deferred (lazy) evaluation.

Allows for additional optimizations using information about the operations being applied.

For more information, see the documentation.

Field Summary

Fields

Modifier and Type	Field and Description
protected HashIntoGroupImpl	impl
protected LazyGroup	target

Constructor Summary

Constructors

Constructor and Description
HashIntoLazyGroup(HashIntoGroupImpl hash, LazyGroup target)
HashIntoLazyGroup(Representation repr)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
Representation	getRepresentation() The representation of this object.
LazyGroup	getTarget()
LazyGroupElement	hash(byte[] x) Hashes a byte array into the structure.
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.cryptimeleon.math.structures.groups.HashIntoGroup

hash, hash

Field Detail

impl

protected HashIntoGroupImpl impl

target

protected LazyGroup target

Constructor Detail

HashIntoLazyGroup

public HashIntoLazyGroup(HashIntoGroupImpl hash,
                         LazyGroup target)

HashIntoLazyGroup

public HashIntoLazyGroup(Representation repr)

Method Detail

hash

public LazyGroupElement hash(byte[] x)

Description copied from interface: HashIntoStructure

Hashes a byte array into the structure.

Specified by:

hash in interface HashIntoGroup

Specified by:

hash in interface HashIntoStructure

Parameters:

x - a sequence of bytes to hash

Returns:

the resulting structure element

getRepresentation

public Representation getRepresentation()

Description copied from interface: Representable

The representation of this object. Used for serialization. A convenient way to implement this is using @link ReprUtil

Specified by:

getRepresentation in interface Representable

Returns:

a Representation or null if an equal object can be recreated without any information.

See Also:

Representation

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getTarget

public LazyGroup getTarget()